Extrusion for use in the construction of a floor of a motor lorry



FIG. 1 is a front perspective view of the extrusion for use in the construction of a floor of a motor lorry showing my new design; and

FIG. 2 is a sectional view of the extrusion along line 2--2 in FIG. 1. 

The ornamental design for an extrusion for use in the construction of a floor of a motor lorry, as shown. 